src/components/ui/button.tsx

import * as React from "react";
import { Slot } from "@radix-ui/react-slot";
import { cva, type VariantProps } from "class-variance-authority";
import { cn } from "@/lib/utils";

const buttonVariants = cva(
    "inline-flex items-center justify-center whitespace-nowrap rounded-md text-sm font-medium transition-colors focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring disabled:pointer-events-none disabled:opacity-50",
    {
        variants: {
            variant: {
                default: "bg-foreground text-background shadow hover:bg-foreground/90",
                ghost: "hover:bg-accent hover:text-accent-foreground",
                outline: "border border-border bg-transparent hover:bg-accent",
            },
            size: {
                default: "h-9 px-4 py-2",
                sm: "h-8 rounded-md px-3 text-xs",
                lg: "h-10 rounded-md px-8",
                icon: "h-9 w-9",
            },
        },
        defaultVariants: {
            variant: "default",
            size: "default",
        },
    }
);

export interface ButtonProps
    extends React.ButtonHTMLAttributes<HTMLButtonElement>,
    VariantProps<typeof buttonVariants> {
    asChild?: boolean;
}

const Button = React.forwardRef<HTMLButtonElement, ButtonProps>(
    ({ className, variant, size, asChild = false, ...props }, ref) => {
        const Comp = asChild ? Slot : "button";
        return (
            <Comp
                className={cn(buttonVariants({ variant, size, className }))}
                ref={ref}
                {...props}
            />
        );
    }
);
Button.displayName = "Button";

export { Button, buttonVariants };